MAY 2026
ELECTRICAL NEWS
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REGULARS: CONTRACTORS’ CORNER | FEATURES: SOLAR & ENERGY EFFICIENCY | LIGHTNING & SURGE PROTECTION | LIGHTING
MICROWAVE VS INFRARED OCCUPANCY SENSORS -ENHANCING EFFICIENCY AND INTELLIGENCE IN MODERN ELECTRICAL DESIGN
I n modern electrical design, efficiency and intelligence are no longer luxuries—they’re expectations. Among the most practical tools driving this shift are microwave and infrared occupancy sensors. These devices do more than switch lights on and off; they offer
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performance without unnecessary activation. Some advanced models integrate seamlessly with smart building systems, enabling centralised control and monitoring. From a safety and convenience standpoint, these sensors also play a valuable role. Automatic lighting in stairwells, entrances, and outdoor areas improves visibility and reduces the risk of accidents, while also providing a level of security by ensuring spaces are never left in complete darkness. In the end, the choice between microwave and infrared sensors isn’t about which is better—it’s about which is right for the application. Each has proven its worth over time. Used correctly, they form the backbone of efficient, intelligent lighting systems that save energy, reduce costs, and offer a level of practicality that older methods simply can’t match.
responsiveness and energy control that traditional systems cannot match. At their core, occupancy sensors detect the presence of people within a space and automatically control lighting, and in some cases, HVAC systems. This eliminates the all-too-common issue of lights being left on in unoccupied areas—something that quietly drives up energy costs over time. Infrared (PIR) sensors detect changes in heat within their field of view. Everyone emits body heat, and when someone enters or moves within a monitored space, the sensor detects this change and triggers the connected system. These sensors are highly reliable in enclosed areas such as offices, boardrooms, corridors, and restrooms. They perform best with a clear line of sight, making them a dependable and cost-effective choice for straightforward installations. Microwave sensors, on the other hand, take a more advanced approach. Rather than relying on heat, they emit high-frequency electromagnetic waves and measure the reflections from moving objects. This enables them to detect motion through certain materials, such as glass, plastic, and even thin walls. As a result, microwave sensors are particularly effective in larger or more complex environments, such as warehouses, car parks, and open-plan spaces, where broader, more flexible coverage is required. One of the standout advantages of microwave sensors is their sensitivity. They can detect even the slightest movement—such as hand motion at a desk. This makes them ideal for areas where occupants may remain relatively still for extended periods. However, that same sensitivity requires careful calibration during installation to avoid false triggers caused by movement outside the intended detection zone. A key benefit shared by both technologies is energy efficiency. By ensuring that lighting and electrical systems operate only when needed, businesses and homeowners can significantly reduce electricity consumption. Over time, this leads to lower utility bills and a reduced environmental footprint—an increasingly important consideration in today’s energy-conscious world. Modern occupancy sensors also feature adjustable settings, including time delays, sensitivity levels, and ambient light thresholds. This allows systems to be tailored to specific environments, ensuring optimal
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CONTRACTORS’ CORNER
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Safe & simple: Hager’s HWS series, the new standard in air circuit breakers I n low-voltage distribution systems, equipment selection is rarely limited to performance alone. Physical footprint, installation practicality, and project timelines often play an equally critical role in what range for everyday applications, built for reliable protection and easy installation in constrained spaces. The hws series sits alongside the hw+ range, Hager’s advanced Air Circuit Breaker solution for more complex requirements. This standard range offers a higher-value solution, giving specifiers ultimately gets specified. Within this environment, the hws series is Hager’s standard Air Circuit Breakers (ACBs)
the flexibility to match the right level of capability to each project without compromising Hager reliability. Performance under pressure Performance requirements continue to rise in modern electrical installations, particularly under more demanding operating conditions. The hws series of ACBs is designed to operate at ambient temperatures of up to 50°C without de-rating, maintaining
Regular maintenance should be viewed as an investment.
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hws series air circuit breakers The new standard for safety, reliable performance, and flexibility.
stable performance in high-temperature environments. The range extends up to 85 kA breaking capacity and is available in two frame sizes (hws2 and hws4), covering applications from 320 A to 4000 A. A Pollution Degree 4 rating further supports use in environments where dust and moisture are more prevalent and can impact long-term equipment performance. apparent during assembly and wiring, where efficiency and consistency are critical. Screw-less terminal blocks for accessory wiring support faster, more consistent terminations in repetitive build environments, while rear connections can be configured for horizontal or vertical installation up to 4000 A, allowing alignment with existing busbar layouts without redesign. A modular accessory system then enables additional functions such as motor operators, shunt trips, and undervoltage releases without extensive rewiring. Designed for the workbench Installation benefits become most Certified protection Compliance and protection coordination remain central to the design. The hws series complies with IEC 60947-2 standards and carries CE and CCC certifications, confirming conformity with international safety requirements for low-voltage switchgear. Protection settings are adjusted using rotary dials on the built-in OCR trip unit. It uses LSI (Long-time, Short-time, and Instantaneous) protection, allowing the breaker to respond differently depending on fault severity and ensuring faults are isolated correctly within the distribution system As installation environments continue to evolve, the role of switchgear extends beyond protection alone. The hws ACB series reflects this shift, treating performance, configurability, and practical installation considerations as part of a single design requirement. The hws range is available through ElectroMechanica, with local technical support and stock holding to assist with project requirements.
Ratings: 320 – 4000 A Frame Sizes (HWS2 & HWS4) Breaking Capacity up to 85 kA
Scan to download the brochure
www.em.co.za
www.em.co.za
SPARKS ELECTRICAL NEWS
MAY 2026
CONTRACTORS’ CORNER | EDITOR’S COLUMN
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Powering ahead: energising the future W ith May’s vibrant energy, I am excited to present this month’s edition of Sparks. Our May issue
contemporary lighting solutions. Whether it’s improving energy efficiency or enhancing the user experience, lighting professionals will find inspiration and practical ideas in these pages. Sparks keeps you informed, inspired, and connected. We hope this issue sparks ideas and supports your drive for a safer, smarter, and more sustainable electrical industry. The June issue will cover DBs, Switches and Sockets, Tools and Tooling, and Lighting. If you have any news to share with the industry, please email me. The deadline for submissions is 13 May 2026.
highlight the importance of maximising energy output while minimising environmental impact—an essential goal for every forward-thinking professional. Safety is at the heart of electrical work. This issue’s Earthing, Lightning & Surge Protection section emphasises grounding techniques for reliability and the latest surge protection devices that safeguard infrastructure and personnel. With more extreme weather, these strategies are vital. Lighting, one of the most dynamic sectors in our field, continues to develop rapidly. In this edition, we examine new technologies, design trends, and regulatory considerations shaping
is filled with illuminating insights and important updates, focusing on three pillars shaping the future of the electrical industry: Solar & Energy Efficiency, Earthing, Lightning & Surge Protection, and Lighting. In recent years, the global shift towards sustainable energy has gained significant momentum. Our Solar & Energy Efficiency feature explores the latest innovations, practical applications, and policy changes driving solar adoption across industries and communities. We present success stories and expert insights that
Minx Avrabos sparks@crown.co.za
Powering precision: ACDC Dynamics partners with Hugong to strengthen welding solutions in South Africa I n today’s industrial landscape, reliability and consistency are essential. Businesses can’t tolerate variability in Its equipment is utilised across key sectors such as automotive,
structural steel, pipeline construction, power generation, and shipbuilding. Each solution is designed to operate effectively in real working conditions while maintaining consistent output and efficiency. As the official distributor of Hugong in South Africa, ACDC Dynamics ensures that this advanced technology is easily accessible to the local market. Customers benefit from: • Reliable product availability across the country • Competitive solutions suited to specific applications • Access to local technical expertise and support • A trusted national distribution network This means quicker access to the right equipment, less downtime, and higher productivity on site. More importantly, customers gain peace of mind knowing they are supported by both a global manufacturer and a well-established local partner. As industry advances, ACDC Dynamics remains committed to providing practical, reliable, and high-performance solutions. Contact us today for more
performance or results. That’s why having equipment you can rely on, day after day, makes all the difference. To meet this demand, ACDC Dynamics has partnered with Hugong, a global leader in welding and cutting technology. This collaboration combines world-class manufacturing with strong local support to provide reliable solutions across South Africa. Hugong has over 60 years of experience in manufacturing welding equipment. It is one of China’s largest producers in this sector and is listed on the Shanghai Stock Exchange. The company supplies products to more than 110 countries and has been consistently ranked as China’s leading exporter of welding and cutting machines since 2013. This global presence demonstrates a strong commitment to quality, innovation, and performance. Hugong’s product range is designed to cater to the needs of modern industry. With more than 18 product series and over 2,000 SKUs, it supports a broad spectrum of applications. These include DIY projects, light industrial work, and demanding heavy-duty environments.
details about Hugong or to explore all our electrical solutions at sales@acdc.co.za . MILWAUKEE®: Precision tools for test and measurement W hen it comes to reliable, accurate results, MILWAUKEE®’s range of test and measurement devices making them indispensable in demanding environments.
and an automatic shut-off function. With an IP54 rating, they are built to withstand tough job-site conditions. Auto voltage/continuity testers MILWAUKEE®’s Auto Voltage and Continuity Testers are engineered for durability and ease of use. They feature backlit LCD screens for clear visibility in any lighting condition, and their rugged, overmoulded construction provides protection in all working conditions. Infrared Temp-Gun™ The 10:1 Infrared Temp-Gun™ is another standout, capable of measuring a 1 m spot from up to 10 m away. With a wide temperature range of -30°C to 400°C, this tool is ready for any task. Its premium LCD and simplified user controls make scanning fast and efficient.
Essential electrical testing tools For electrical professionals, MILWAUKEE® offers essentials such as the Fork Meter and Digital Multimeter. The Fork Meter features a non-contact voltage detector and a side-mounted dial for easy one- handed operation. The Digital Multimeter delivers accurate readings, with a high- contrast display and versatile contact temperature measurement. Upgrade your toolkit Whether you’re measuring distances, checking voltage, or monitoring temperature, MILWAUKEE®’s test and measurement devices form the foundation of a reliable professional toolkit. Browse the full selection online to find the right tools for your trade and experience an instant improvement in accuracy and efficiency.
stands out among professionals across industries. These tools are designed to deliver precise readings and rapid results,
Laser Distance Meters (LDMs) A highlight of the MILWAUKEE® lineup is the Laser Distance Meter, a must-have for
any professional toolkit. These devices provide instant, safe, and highly accurate measurements between two points— even those that are otherwise inaccessible. The LDM30 model boasts ±2 mm accuracy, while the LDM50 offers ±1.5 mm precision. Both models include helpful features such as memory storage, a convenient belt clip,
SPARKS ELECTRICAL NEWS
MAY 2026
CONTRACTORS’ CORNER
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Introducing the Apollo Shadow Range: proudly made in South Africa by Lesco Manufacturing L esco Manufacturing is proud to introduce the Apollo Shadow. It is a bold new addition to the Apollo wiring device family, designed for the
modern South African interior. With its straight-edged frame, matte-textured finish, and signature curved side profile, the Apollo Shadow casts a subtle shadow on the wall, blending seamlessly into contemporary spaces while making a quiet style statement. Available in white and black, the range includes switches, isolators, sockets, dimmers, blanks, and USB combination units, covering all everyday electrical needs in one cohesive collection.
www.lescosk.com
The ECA response to the R3 reduction in the fuel levy T he R3 reduction in the fuel levy is too small to offer relief to the struggling consumer. Businesses are fighting to stay afloat, and we
their countries at lower prices than we do. We are victims of taxes and levies, and they are squeezing us endlessly. The government already earns enough from businesses through income tax. The heavy burden of fuel taxes and levies is unmanageable. Now, we must also suffer from price fluctuations caused by distant conflicts that have nothing to do with us. It is unfair for the citizens of this country that we merely create costs and pass them on to consumers. The ECA(SA) urges the government to cut fuel levies by a meaningful amount. Paying nearly R30 per litre of diesel is utterly unjust.
rely on customers to afford our services. When we succeed, we generate income and pay taxes. These taxes are sufficient and must be used efficiently and properly, rather than funding corruption or causing negative headlines. We are informed that nearly 50% of the fuel price comprises levies and taxes. These should be reduced by 50%, as governments elsewhere in the world have done. Namibia has already cut its fuel levies by 50%. Why don’t we follow suit? It is unacceptable that people from Botswana and Eswatini buy fuel in South Africa and then sell it in
SkyJacks expands portfolio with GEDA 300 Z Boiler Hoist M aintenance in high-value industrial environments, such as silos and boilers,
With a lifting capacity of 300 kg and a height reach of 100 metres, it suits various maintenance tasks. Its durable construction ensures longevity in tough environments, while its compact size suits tight spaces. Safety features include overload protection, electromagnetic brakes, limit switches, emergency stops, and a secure load platform, ensuring personnel and material safety and compliance with safety standards. These safety measures help maintain a safe working environment without compromising efficiency, promoting sustainability and long-term workforce wellbeing. Industries such as power generation, mining, petrochemical, and industrial construction benefit from the GEDA 300 Z, especially where confined-space maintenance is common, helping reduce downtime and improve performance. SkyJacks offers ongoing support for servicing, safety inspections, spare parts, technical assistance, and operator training to ensure reliable operation and compliance with safety standards. Jacobs emphasises that the GEDA 300 Z provides a smarter, safer, and more efficient maintenance approach in challenging environments, creating value through reduced downtime and improved safety. As industries prioritise uptime, safety, and efficiency, the GEDA 300 Z is becoming essential for transforming maintenance in confined industrial spaces.
www.eca.co.za
often faces space constraints, with limited access sometimes available only through a 45 cm manhole, hindering the effectiveness of traditional lifting equipment. This leads to reliance on manual handling, which is time-consuming and physically demanding. SkyJacks introduced the GEDA 300 Z Boiler Hoist, designed for tight spaces. Industries such as energy, mining, and manufacturing perform maintenance in vertical structures, where safely moving materials between levels is critical. Without effective lifting systems, operations slow down, increasing downtime and safety risks. Manual handling reduces productivity and increases fatigue, making it harder to meet deadlines. The GEDA 300 Z features a modular, lightweight design that fits through narrow openings, including 45 cm manholes. It can be assembled by two people in about 40 minutes in confined spaces, creating a functional hoist that traditional systems can’t operate in. Darryn Jacobs, SkyJacks MD, notes that many maintenance environments weren’t designed for modern equipment, but the GEDA 300 Z changes that by enabling safe, efficient lifting in hard-to- reach spaces. The hoist improves workflow and efficiency by enabling organised material movement between levels, reducing waiting times and enhancing team coordination, thereby speeding up maintenance.
Rollers excel where profits balance on a knife-edge P olymer component specialist manufacturer igus has developed a range of lubrication- free, long-life knife-edge rollers designed to improve product transfer between conveyor belts in high-speed production environments. The company’s knife-edge rollers are specialised guide rollers used at the transfer between
conveyor belts. They allow conveyor belts to wrap around a very small radius so that products can transfer smoothly from one belt to another with the smallest possible gap. This prevents snags and stops smaller items from dropping between conveyors. Knife-edge rollers are commonly used in automated production lines, packaging equipment, and food processing systems where seamless, efficient product transfer is required for typical applications such as baked goods, packaged foods, small goods, and sensitive electronics, among others. According to igus product specialist Juan- Eric Davidtz, igus uses its world-renowned tribologically optimised polymer materials for the rollers, which deliver low-friction, lubrication- free operation while enabling extremely tight belt deflection. “Machine builders and conveyor system designers rely on our knife-edge rollers to maintain consistent product flow while keeping conveyor layouts compact. The smaller the belt deflection radius, the smoother the transfer between conveyors, thereby improving production efficiency and reducing product losses. “This is what sets igus knife-edge rollers apart, as our iglidur materials are engineered specifically for industrial motion applications and contain embedded solid lubricants. As a result, the rollers operate dry with no need for grease or oil lubrication,” he says. Juan-Eric adds that the lubrication-free design prevents contamination, reduces maintenance
requirements, and significantly extends the lifespan of the rollers. This means the rollers can operate reliably for extended periods and can be used in all environments, including hygienically sensitive environments such as pharmaceutical, engineering, food and beverage processing plants. The igus knife-edge rollers are also tougher than steel alternatives. They offer higher wear resistance and lower friction, which allows them to operate smoothly in continuous-duty conveyor systems. Their polymer construction also provides good chemical resistance and corrosion protection in chemical processes, while the lightweight design can reduce drive loads compared with conventional metal rollers. We are continuously communicating with designers keen to exploit these advantages across a wide range of applications. With a broad selection of standard sizes and customised configurations, it enables OEMs and machine builders to precisely match roller geometry and dimensions to their conveyor systems. This is important in high-speed production environments where even small interruptions can lead to downtime and where the reduction of downtime equates to improved profitability,” Juan-Eric concludes.
www.skyjacks.co.za
www.igus.co.za
SPARKS ELECTRICAL NEWS
MAY 2026
SOLAR & ENERGY EFFICIENCY
5
HDGASA is raising solar installation standards in South Africa
A s competition in the PV reduced to cut costs. “Steelwork, though a minor investment, is crucial for plant durability. However, quality and
suited to local conditions. He highlights corrosion protection as essential, noting hot dip galvanising can provide over 40 years of protection—longer than many plant components. However, he cautions that thinner steel and reduced galvanising may be inadequate in harsh environments, even if they suffice in milder conditions. Clarke urges project owners to rigorously assess environmental and soil conditions before selecting materials. He warns that, despite industry awareness, cost pressures
sector has intensified, robust specifications have often been
Steelwork, though a minor investment, is crucial for plant durability. However, quality and corrosion control are often overlooked.
corrosion control are often overlooked”, says HDGASA Executive Director Robin Clarke. Where sun meets steel Clarke says HDGASA works with PV installers to update outdated specifications and ensure materials are
accountability. Clarke says many companies aim for sustainability and use HDGASA guidance, but face competitors who cut costs by compromising standards or lack expertise. Solar-powered solutions He explains that pressure to minimise capital costs discourages robust specifications, but HDGASA is working with suppliers to ensure value and accountability as the sector grows. He concludes that design criteria must be tailored to each site and strongly urges project owners and designers to consult corrosion experts during planning to ensure accurate, site- specific assessments and long-term success.
may still result in suboptimal choices. Project owners and professionals should actively prioritise site-specific material assessments over cost-cutting. Rooftop solar systems have also faced challenges as early installations often overlooked roof condition. Now, assessments are routine to ensure roofs can support solar systems for the required investment period. Shining a light on localisation Clarke is concerned that imported steelwork remains common despite local capacity, creating accountability issues and specification mismatches. He stresses that project owners and decision-makers should actively choose local suppliers to help ensure quality and
www.hdgasa.org.za
The Khauta Solar Project: Trinasolar is pioneering South Africa’s renewable energy future
S outh Africa’s renewable energy sector is of the country’s largest solar farms, it includes two contracts delivered simultaneously: Khauta South at 352.5 MW and Khauta West at 157.8 MW, both located in Welkom, Free State Province. Trinasolar, working with a top South African EPC company, provided high- performance modules and comprehensive commercial and technical support, including post-contract adjustments. The project’s impact exceeds its scale; it showcases the maturity of South Africa’s solar sector. Successfully delivering two major contracts simultaneously required strong coordination among all parties and established a new regional standard for utility-scale solar. With 10 GW of installed capacity, South Africa now ranks among the top 20 solar PV markets globally. The Khauta project not only marks a significant growing quickly, with the 510 MW Khauta Solar Project marking an important milestone. As one milestone in this development but also demonstrates the trust that developers and EPCs have in Trinasolar. Completing a project of this scale presented unique challenges. Zaheer Khan, Regional Director – South Africa, Trinasolar, said, “Utility projects are complex, with evolving specifications, shifting timelines, and significant logistical demands. Our team provided ongoing support, adapting to requirements and working closely with the contracted EPC. This partnership helped overcome industry-wide hurdles such as supply chain logistics and grid connections, demonstrating that strong alliances and technology enable South Africa to deliver large-scale renewable projects.” Trinasolar’s collaboration with local partners extends beyond supply agreements. Their role encompasses the entire project lifecycle, from initial discussions to technical and after-sales support. The contract with Mulilo for the 220 MW Orkney Solar Project affirms their long-term presence in South Africa. The company aids the renewable energy sector through training, workshops, and knowledge sharing via TrinaHub, and encourages local wellness and youth initiatives. South Africa’s solar market is experiencing two main shifts: expansion in utility-scale projects and increased adoption of solar-plus-storage. Recent procurement rounds have set records, shifting focus to dispatchable
Utility projects are complex, with evolving specifications, shifting timelines, and significant logistical demands. Our team provided ongoing support, adapting to requirements and working closely with the contracted EPC. This partnership helped overcome industry-wide hurdles such as supply chain logistics and grid connections, demonstrating that strong alliances and technology enable South Africa to deliver large-scale renewable projects.
placed for sustained growth. Trinasolar’s innovation, sustainability initiatives, and local partnerships position it at the forefront of this transition.
renewable energy sector is positive. With a strong pipeline and supportive policies, the country is prepared for significant solar expansion. Grid access remains the main obstacle, but with investment and collaboration, the sector is well-
power, not just daytime generation. Trinasolar’s product range addresses these needs, with advanced modules and battery storage systems suitable for local conditions. The outlook for South Africa’s
www.trinasolar.com
SPARKS ELECTRICAL NEWS
MAY 2026
SOLAR & ENERGY EFFICIENCY
6
Africa’s Green Economy Summit 2026: turning climate goals into action A frica’s Green Economy Summit (AGES) 2026 concluded in Cape Town with a call to action: harness digital
ZF SolarBoost increases vehicle uptime and reduces the carbon footprint for bus operators
Maintenance and Hanno Mostert, Chief Asset Management Officer at Sustainable Power Solutions (SPS) S outh Africa’s clean energy sector is shifting from merely installing capacity to focusing on consistent performance. As companies rely on embedded generation for stability and cost control, daily operations and maintenance (O&M) become central to energy reliability and financial success. O&M ensures power plants operate efficiently throughout their lifespan through supervision, monitoring, maintenance, fault detection, and on-site work. Many organisations lack the expertise to manage complex, modern distributed generation systems that combine multiple technologies, making performance management more difficult. This is why more companies prefer specialist O&M innovation, reform water financing, and redesign agriculture for a net-zero Africa. Over 600 delegates from 42 countries agreed that with the right policies and financial tools, the continent can transform climate risks into opportunities. The summit centred on climate finance, examining green, blue, and wildlife bonds such as the “Rhino Bond,” and emphasised that communities should be stakeholders, not merely beneficiaries. Sanlam Investment Group CEO Carl Pioneering new models for climate finance Roothman emphasised the urgency of acting at scale, while Iain Banner of Go Green Africa described the green and blue economies as the “new operating systems” for Africa. Government calls for practical collaboration Deputy Minister Narend Singh urged a move from policy to action, referencing South Africa’s Just Energy Transition Partnership. He called for local value chains and mineral beneficiation to generate jobs and advance technology. A digital imperative for climate action Integrating climate change and digital transformation was a central theme. World Bank’s Siddhartha Raja highlighted that data centres can support renewable energy but must be resilient against climate risks, from floods to e-waste. Chrissy Meier from the Digital Impact Alliance warned that African cities lack local data for climate strategies and highlighted the risks of using non-African data in AI models. Making water infrastructure bankable In a panel discussion on water project financing, Obadiah Mungai of the World ResourcesInstitute Africa stated that
T he new retrofit solution ZF SolarBoost provides clean, reliable power to 24V battery systems of medium to large city buses and coaches, helping bus operators reduce fuel costs, extend battery life, and improve operational efficiency. The easy- to-install solar panels generate electricity during vehicle operation and continuously charge the battery. ZF SolarBoost offers bus fleet operators an intelligent solution to reduce fuel and battery costs while improving sustainability. Specifically designed for buses, ZF SolarBoost provides clear operational benefits. It increases vehicle uptime by decreasing the need for battery recharging and minimising maintenance. The longer battery lifespan helps lower maintenance costs: based on daily experience from bus operators, it is possible to save the equivalent of one onboard battery per vehicle each year. By generating renewable energy during vehicle operation, bus operators actively support climate protection, as onboard systems no longer rely solely on the vehicle’s electrical supply. Furthermore, thanks to the additional energy source for charging the battery, the load on the engine is reduced, which, depending on operating conditions and weather, can decrease fuel consumption by up to 3.5 per cent. Another key benefit is the plug-and- play feature, which usually requires no drilling or rewiring and thus allows quick, scalable deployment across entire fleets with minimal downtime. Installation in the operator’s workshop can be completed using standard tools, supported by a ZF video tutorial. Additionally, the system connects to the operator via Bluetooth, enabling real- time monitoring through an app. The sturdy and fully adaptable design resists vibration and weather conditions, ensuring a longer lifespan than many similar products. A five-year warranty and the availability of repair kits offer extra peace of mind for users. ZF SolarBoost emphasises ZF’s strategic dedication to sustainability and innovation. The system is a scalable, future- ready solution that enhances bus fleet efficiency and environmental friendliness. By combining straightforward installation, durable and flexible panels, and measurable operational advantages, ZF SolarBoost offers bus operators a practical way to lower costs, boost uptime, and promote climate- friendly mobility.
Integrating climate change and digital transformation was a central theme. World Bank’s Siddhartha Raja highlighted that data centres can support renewable energy but must be resilient against climate risks, from floods to e-waste.
providers, as the increasing complexity of energy assets—including energy storage, wind, and advanced software—requires focused technical skills. Traditional maintenance methods are no longer sufficient; problems can occur between site visits, reducing efficiency and output. Modern O&M employs real-time data, sensors, analytics, and technologies like drones and infrared imaging for early fault detection and performance optimisation. Outsourced O&M provides the technical expertise and monitoring systems necessary to maintain performance, allowing internal teams to concentrate on core priorities. A dependable O&M partner enhances performance and transparency, helping owners understand and sustain asset value. As the adoption of clean energy increases, resilience becomes crucial. Data-driven operations and maintenance (O&M) along with expert partners are vital for managing environmental and operational challenges. South Africa’s enhancing governance and data can make water projects more appealing to investors. Louise Stafford of The Nature Conservancy stated that Cape Town’s investment in catchment restoration is more cost-effective than desalination. The panel agreed that blended finance and preparation make water resilience an investable opportunity. Strengthening food security through renewable energy Energy instability threatens food systems. Henry Roman of the International Water
Management Institute called for a holistic water-energy-food approach and data tools for farmers. Ian de Jager of I&F Engineering observed that farmers are using small- scale hydropower to produce energy and income. Andrea Campher of Standard Bank stressed that emissions profiles now matter as much as product quality. AGES 2026 demonstrated that integrating climate goals into Africa’s essential systems fosters real progress. The upcoming summit is scheduled for March 2027 in Cape Town.
Efficiency, reliability, and returns: why expert O&M will secure South Africa’s energy future By: Dane Links, Head of Operations &
Dane Links.
energy future relies on expanding capacity and ensuring existing assets provide consistent value through modern O&M practices, supporting dependable and sustainable energy systems.
www.aftermarket.zf.com/en/
www.sps.africa
SPARKS ELECTRICAL NEWS
MAY 2026
SOLAR & ENERGY EFFICIENCY
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The new meeting place for South Africa’s C&I energy market R E+ South Africa Conference launches in June as a dedicated platform for businesses pursuing clean energy solutions. Bringing together stakeholders from key sectors at the Gallagher
Energy Efficiency as a service – now you can have your cake and eat it too By Thabang Byl, Buildings Segment Lead at Schneider Electric
and energy leaders with practical, business-led insights. Participants can expect real-world case studies from leading companies, advice on PPAs, financing, and risk management, as well as updates on policy and regulation. The sessions will also cover emerging topics like ESG compliance and energy asset lifecycle planning. Register now to secure your place—early bird rates end on 30 April 2026. Join this exclusive forum of energy leaders and help drive change in South Africa. Contact the RE+ South Africa team for enquiries.
Today, advanced technologies such as Building Management Systems (BMS), Uninterruptible Power Supply (UPS), and integrated workspace management software go a long way towards optimising energy use and ensuring a continuous supply.
Convention Centre (2–3 June 2026), the event occurs alongside RE+ South Africa and helps shape the future of energy. Why this conference matters? The C&I energy market is evolving due to rising costs, security concerns, new regulations, and growing ESG demands. Many businesses are still seeking ways to turn strategies into effective actions. The RE+ South Africa Conference tackles these challenges by providing business
B uildings are, by their very nature, energy-intensive. Fortunately, there are well-known solutions that allow businesses and facility managers to manage this energy use. But, and isn’t there always a but, it does come at a cost. Today, advanced technologies such as Building Management Systems (BMS), Uninterruptible Power Supply (UPS), and integrated workspace management software go a long way towards optimising energy use and ensuring a continuous supply. Unfortunately, these technologies can be quite costly, leaving businesses struggling to balance operational efficiency with sustainability goals. Enter Energy Efficiency as a Service (EEaaS). Whilst similar to its older sibling, Energy as a Service (EaaS), it essentially operates as a subset, focusing primarily on reducing energy consumption through upgrades such as efficient lighting, HVAC systems and insulation. In South Africa, EEaaS offers the opportunity to achieve quick cost savings while also reducing the carbon footprint. Indeed, in a country that is perpetually facing rising energy costs and supply challenges, EEaaS is not only good for the environment but also for business. burden from capital expenditure (CapEx) to operational expenditure (OpEx). This allows commercial property managers and owners to retrofit existing facilities with energy-efficient solutions and monitoring technology without incurring upfront costs. EEaaS at work Like EaaS, EEaaS shifts the financial Also, by partnering with specialised service providers, organisations can access ongoing support, analytics, and maintenance, ensuring the optimal operation of their systems. As with other ‘As-a-Service’ models, this results in a sustainable strategy that drives significant cost savings and operational efficiency while allowing businesses to focus on their core activities. Models of flexibility As-a-Service (AaS) models, such as Software-as-a-Service (SaaS) and Everything-as-a-Service (XaaS), have seen significant global success and adoption across industries.
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Bridging Africa’s energy divide: powering progress and prosperity A frica’s development depends on expanding energy grids. In 2025, electricity demand will grow by 5.2%, yet over 600 million Africans still lack reliable power, limiting opportunities in
between 2% and 6% of GDP annually. More than 25% of firms in major economies such as Ghana, Angola, and Nigeria report substantial sales losses due to outages. Reliable electricity is especially vital for small and medium-sized enterprises and rural communities, where stable power enables job creation and economic activity. Bridging Africa’s energy gap requires more than technical solutions; it demands bold investment and policy reform. Although Africa holds 40% of the world’s solar potential, it accounts for less than 2% of installed solar capacity. The International Energy Agency estimates that annual grid investment must rise from $10 billion to nearly $50 billion by 2030 to expand transmission lines, modernise existing infrastructure, integrate renewable energy, and improve rural access. Achieving this will require attracting private capital through public-private partnerships and modernising regulatory frameworks to encourage innovation and integrate renewables. Africa’s success stories, such as the Ethiopia-Kenya Power Interconnection Project, demonstrate that investment, partnership, and regulatory reform yield tangible benefits. The continent has the necessary resources. Now is the time for leaders, investors, and policymakers to step up, commit to decisive action, and accelerate efforts to electrify Africa’s future. The path to sustainable growth depends on making reliable energy access a reality for all.
education, healthcare, and industry. The backbone of Africa’s economic growth is reliable energy grids. Modern, interconnected transmission and distribution networks are essential for delivering electricity efficiently over vast distances. Investing in resilient grid systems increases energy capacity and ensures a reliable power supply, directly supporting prosperity and improving quality of life. Innovation and collaboration are driving improvements in the grid. The adoption of smart grids and the integration of renewable energy, such as solar and wind, are strengthening grid capacity and reliability. Smart grids use digital technology to monitor and manage electricity flow, making systems more responsive and cost- effective. Regional cooperation, exemplified by initiatives such as the Southern African Power Pool, enables countries to share resources and balance supply and demand, thereby making energy systems more robust and accessible. Energy poverty remains a critical obstacle. Power disruptions severely affect manufacturing, healthcare, and small businesses, causing downtime, lost sales, and higher costs from reliance on backup generators. According to 2025 estimates, unreliable electricity costs African nations
Thabang Byl, Buildings Segment Lead at Schneider Electric
implementation of EEaaS often relies on financial backing to ensure scalability and sustainability. These institutions play a crucial role in providing the necessary capital, structured as operational expenditure, to facilitate the widespread adoption of energy-efficient technologies. This collaboration not only mitigates financial risks for businesses but also undoubtedly accelerates the transition towards a more sustainable energy future. At Schneider Electric, we offer a comprehensive EEaaS model that enhances energy resilience, sustainability, and efficiency without requiring upfront capital investment. Key features include: • Customised solutions: tailoring energy management services to meet specific organisational goals, such as reducing carbon footprints or enhancing energy reliability. • No upfront costs: allowing customers to avoid capital expenditures by opting for predictable monthly payments. • Integration with renewables: incorporating solar and battery storage to enhance sustainability. • Risk mitigation: managing the entire process from planning to implementation, thereby reducing financial and operational risks for customers. • Microgrid technology: implementing microgrids to provide decentralised energy solutions, thereby improving resilience and reducing costs.
In fact, the global XaaS market continues to expand at a rapid pace, driven by the flexibility and
scalability of these models. In a recent Accenture survey, 85% of executives cited AaS models as complementing existing revenue streams. Like many AaS models, the successful
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LIGHTNING & SURGE PROTECTION
10
Lightning Threat - mystery and clarity M isunderstandings, misconceptions, misinformation, ignorance, and arrogance still hinder sound currently at Edition 3.3 (2018). It serves a supplementary role, focusing on additional methods for protection against direct lightning strikes.
decision-making in the lightning protection industry, impacting property owners and asset risk managers across South Africa. Misunderstanding 1: SANS 10313 versus SANS 62305 In 2026, SANS 62305 (“Protection against lightning”) is the primary standard for mitigating lightning-related damage and injury in South Africa. Since its 2007 adoption, it has evolved through several editions; the current 2025 Edition 3 introduces critical data on ground strike-point density and clarifies • What isolated lightning protection systems are, • The role of lightning surge protection measures, and • The relevance of thunderstorm warning systems in any mitigation solution. Every property owner in South Africa has the right to know if they are at risk from lightning. SANS 62305 offers a way to measure that risk across four sections covering: • The intelligent context of lightning threat • Quantifying lightning risk, • Mitigation methods to protect against direct lightning strikes, and • Mitigation measures to protect against lightning surges from indirect lightning strikes. SANS 10313, derived from SABS 03 (1952), has been aligned with SANS 62305 and is
Misunderstanding 2: LPS versus LSPM A clear distinction must be made between: • Lightning Protection Systems (LPS): Systems designed to safely intercept and conduct lightning to ground. • Lightning Surge Protection Measures (LSPM): Measures that limit transient overvoltages caused by lightning. Lightning presents both • A primary threat - direct strike energy capable of destruction and fatality, and • A secondary threat - widespread surge effects causing damage beyond the strike point. The secondary threat accounts for substantial annual insurance losses due to inadequate or incorrect surge protection. A common misconception is that an LPS addresses all lightning risks. In reality, an LPS protects against direct strikes at specific structures, while LSPM provides broader protection against surges from nearby lightning activity. This confusion is compounded by the concept of “internal” and “external” LPS: • The external LPS intercepts and safely dissipates the lightning discharge. • The internal LPS mitigates transient overvoltages resulting from that discharge. Understanding power surges A power surge happens when the voltage in an electrical circuit exceeds the normal level, usually 220-230 volts in South Africa. Surges can be caused by several factors. • Lightning strikes: South Africa experiences some of the world’s highest lightning strike rates, especially in the Highveld region. • Load shedding and power restoration:
Where procedural measures alone are insufficient, engineered solutions are required: • LSPM to reduce surge-related risks, and • LPS to mitigate direct strike hazards. Get informed The SAIEE Lightning Chapter will host a webinar on this subject on 27 May 2026. For inquiries, email lightningchapter@saiee.org.za For more information about lightning protection in South Africa, contact the Earthing and Lightning Protection Association (ELPA) - info@elpasa.org.za • Secondary/point-of-use protection: These plug-in devices safeguard individual appliances or electronics, such as computers or TVs. • Specialised protection: Some sensitive equipment, such as medical devices or industrial controls, may require tailored surge protection solutions. Best practices for surge protection Layered approach: Combining whole-house and point-of-use surge protectors offers the best defence, as not all surges are stopped at the main board. Regularly test and replace surge protectors, as repeated surges wear them out. Always follow manufacturer recommendations. Ensure you choose certified SPDs that meet recognised standards (such as SANS or IEC) to guarantee reliability and effectiveness. Ensure proper grounding, as surge protection only works with adequate earthing. Ask a qualified electrician to inspect your property’s grounding system. Frequent lightning, unstable power, and load shedding make surge protection vital for South Africans. By understanding the risks and taking steps to mitigate them, you can protect your equipment and prevent costly damage.
Misunderstanding 3: preparation for lightning protection Effective lightning protection begins with human behaviour and preparedness, not as an afterthought. A critical first step is determining whether sufficient warning exists before a storm to take protective action. Examples include: • moving people from exposed areas such as golf courses or sports fields, and • unplugging sensitive electrical equipment. Such actions should be incorporated into formal standard operating procedures (SOPs) to ensure timely execution. The sudden return of power after load shedding often causes voltage spikes. • Faulty wiring or equipment: Malfunctions or short circuits can trigger surges within a building. Even small, repeated surges gradually weaken electronic components, while large surges cause immediate, catastrophic damage. Surge protection is vital. Given the risks, one must see surge protection as essential rather than optional for South African homes and businesses. Replacing appliances, computers, or sensitive manufacturing equipment can be costly and result in data loss or reduced productivity. Insurance companies may exclude coverage for surge damage, especially if you fail to install surge protection. How surge protection works Surge protection devices (SPDs) are built to detect excess voltage and safely redirect surges to earth, preventing them from reaching and damaging connected equipment. There are three main types of surge protection: • Primary/whole-house protection: Installed at the main distribution board, these devices protect the entire property from external surges, such as those caused by lightning or grid switching.
Surge Protection in South Africa: safeguarding your electrical systems By Minx Avrabos S outh Africa’s frequent thunderstorms,
ageing power infrastructure, and regular load shedding make surge protection crucial. Power surges can damage or destroy appliances and electronics. This article explains why surge protection matters, how it works, and the best practices for implementing it.
A power surge happens when the voltage in an electrical circuit exceeds the normal level, usually 220-230 volts in South Africa. Surges can be caused by several factors.
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MAY 2026
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